/Engine/Source/Runtime/Projects/Public/Interfaces/IPluginManager.h
Marks an explicitly loaded plugin as disabled, unmounts its content (does not work on plugins with compiled modules).
bool UnmountExplicitlyLoadedPlugin ( const [FString](API\Runtime\Core\Containers\FString) & PluginName, [FText](API\Runtime\Core\Internationalization\FText) * OutReason )